HAT-P-12

{{Short description|K-type main sequence star in constellation Canes Venatici}}

{{Starbox begin

| name = HAT-P-12 / Komondor

}}

{{Starbox observe

| epoch = J2000

| constell = Canes Venatici

| ra = {{RA|13|57|33.4669}}

| dec = {{DEC|+43|29|36.602}}

| appmag_v = 12.84

}}

{{Starbox character

| class = K5

| appmag_1_passband = J

| appmag_1 = 10.794 ±0.023

| appmag_2_passband = H

| appmag_2 = 10.236 ±0.022

| appmag_3_passband = K

| appmag_3 = 10.108 ±0.016

| variable = planetary transit

}}

{{Starbox astrometry

| radial_v = {{val|−40.4589|0.0023}}

| prop_mo_ra = {{val|−134.793|(8)}}

| prop_mo_dec = {{val|−44.229|(11)}}

| pm_footnote =

| parallax = 7.0448

| p_error = 0.0105

| parallax_footnote =

| absmag_v = 12.35 ± 0.23

}}

{{Starbox detail

|source=

| mass = 0.719{{±|0.016}}

| radius = 0.7084{{±|0.0095}}

| luminosity = 0.21{{±|0.02|0.01}}

| temperature = 4710{{±|49}}

| metal_fe = −0.24{{±|0.055|0.062}}

| gravity = 4.594{{±|0.013}}

| rotation = 0.5 ± 0.4 kms⁻¹

| age_gyr = 2.5 ± 2.0

}}

{{Starbox catalog

| names = {{odlist | name = Komondor | name2 = HAT-P-12 | 2MASS=J13573347+4329367 | Gaia DR3=1499514786891168640 | GSC=03033-00706 | SDSS=J135733.42+432936.5 }}

}}

{{Starbox reference

| Simbad = GSC+03033-00706

| EPE = HAT-P-12

| NSTED = HAT-P-12

}}

HAT-P-12 is a magnitude 13 low-metallicity K dwarf star approximately 463 light years away in the constellation Canes Venatici, which hosts one known exoplanet.

Nomenclature

The designation HAT-P-12 indicates that this was the 12th star found to have a planet by the HATNet Project.

In August 2022, this planetary system was included among 20 systems to be named by the third NameExoWorlds project.{{cite web |url=https://www.nameexoworlds.iau.org/2022exoworlds |title=List of ExoWorlds 2022 |date=8 August 2022 |website=nameexoworlds.iau.org |publisher=IAU |access-date=27 August 2022}} The approved names, proposed by a team from Hungary, were announced in June 2023. HAT-P-12 is named Komondor and its planet is named Puli, after the Hungarian Komondor and Puli dog breeds.

Planetary system

In 2009 an exoplanet, HAT-P-12b, was discovered by the HATNet Project orbiting this star. The planet was discovered using the transit method and confirmed by follow up radial velocity measurements. Transit-timing variations suggest the possible presence of additional non-transiting planets in the system.

{{OrbitboxPlanet begin

| table_ref =

}}

{{OrbitboxPlanet

| exoplanet = b / Puli

| mass = 0.211 ± 0.012

| radius = 0.95{{±|2.85|0.02}}

| period = 3.2130598 ± 0.000006

| semimajor = 0.0384 ± 0.0003

| eccentricity = 0

| inclination =

}}

{{OrbitboxPlanet hypothetical

| exoplanet = c

| mass = 0.218

| period = 8.853

| semimajor =

| eccentricity = 0.15499

| inclination = 73.5

}}

References

{{Reflist|refs=

{{cite journal | title=HAT-P-12b: A Low-density sub-Saturn mass planet transiting a metal-poor K dwarf | last1=Hartman | first1=J. D. | last2=Bakos | first2=G. Á. | last3=Torres | first3=G. | last4=Kovács | first4=Géza | last5=Noyes | first5=R. W. | last6=Pál | first6=A. | last7=Latham | first7=D. W. | last8=Sipőcz | first8=B. | last9=Fischer | first9=D. A. | last10=Johnson | first10=J. A. | last11=Marcy | first11=G. W. | last12=Butler | first12=R. P. | last13=Howard | first13=A. W. | last14=Esquerdo | first14=G. A. | last15=Sasselov | first15=D. D. | last16=Kovács | first16=Gábor | last17=Stefanik | first17=R. P. | last18=Fernandez | first18=J. M. | last19=Lázár | first19=J. | last20=Papp | first20=I. | last21=Sári | first21=P. | display-authors=1 | journal=The Astrophysical Journal | volume=706 | issue=1 | pages=785–796 | year=2009 | arxiv=0904.4704 | bibcode=2009ApJ...706..785H | bibcode-access=free | doi=10.1088/0004-637X/706/1/785 | doi-access=free | s2cid=14540643 }}

{{cite journal | title=The GAPS programme with HARPS-N at TNG. XVI. Measurement of the Rossiter-McLaughlin effect of transiting planetary systems HAT-P-3, HAT-P-12, HAT-P-22, WASP-39, and WASP-60 | last1=Mancini | first1=L. | last2=Esposito | first2=M. | last3=Covino | first3=E. | last4=Southworth | first4=J. | last5=Biazzo | first5=K. | last6=Bruni | first6=I. | last7=Ciceri | first7=S. | last8=Evans | first8=D. | last9=Lanza | first9=A. F. | last10=Poretti | first10=E. | last11=Sarkis | first11=P. | last12=Smith | first12=A. M. S. | last13=Brogi | first13=M. | last14=Affer | first14=L. | last15=Benatti | first15=S. | last16=Bignamini | first16=A. | last17=Boccato | first17=C. | last18=Bonomo | first18=A. S. | last19=Borsa | first19=F. | last20=Carleo | first20=I. | last21=Claudi | first21=R. | last22=Cosentino | first22=R. | last23=Damasso | first23=M. | last24=Desidera | first24=S. | last25=Giacobbe | first25=P. | last26=González-Álvarez | first26=E. | last27=Gratton | first27=R. | last28=Harutyunyan | first28=A. | last29=Leto | first29=G. | last30=Maggio | first30=A. | last31=Malavolta | first31=L. | last32=Maldonado | first32=J. | last33=Martinez-Fiorenzano | first33=A. | last34=Masiero | first34=S. | last35=Micela | first35=G. | last36=Molinari | first36=E. | last37=Nascimbeni | first37=V. | last38=Pagano | first38=I. | last39=Pedani | first39=M. | last40=Piotto | first40=G. | last41=Rainer | first41=M. | last42=Scandariato | first42=G. | last43=Smareglia | first43=R. | last44=Sozzetti | first44=A. | last45=Andreuzzi | first45=G. | last46=Henning | first46=Th. | display-authors=1 | journal=Astronomy and Astrophysics | volume=613 | at=Table C.2. | year=2018 | arxiv=1802.03859 | bibcode=2018A&A...613A..41M | bibcode-access=free | doi=10.1051/0004-6361/201732234 | doi-access=free }}

{{cite journal | title=Identification of a Constellation From a Position | last1=Roman | first1=Nancy G. | journal=Publications of the Astronomical Society of the Pacific | volume=99 | issue=617 | pages=695–699 | date=1987 | bibcode=1987PASP...99..695R | bibcode-access=free | doi=10.1086/132034 | doi-access=free }}[http://vizier.u-strasbg.fr/vizier/VizieR/constellations.htx Vizier query form ]

{{cite journal | last1=Wang | first1=Xian-Yu | last2=Wang | first2=Yong-Hao | last3=Wang | first3=Songhu | last4=Wu | first4=Zhen-Yu | last5=Rice | first5=Malena | last6=Zhou | first6=Xu | last7=Hinse | first7=Tobias C. | last8=Liu | first8=Hui-Gen | last9=Ma | first9=Bo | last10=Peng | first10=Xiyan | last11=Zhang | first11=Hui | last12=Yu | first12=Cong | last13=Zhou | first13=Ji-Lin | last14=Laughlin | first14=Gregory | display-authors=1 | title=Transiting Exoplanet Monitoring Project (TEMP). VI. The Homogeneous Refinement of System Parameters for 39 Transiting Hot Jupiters with 127 New Light Curves | journal=The Astrophysical Journal Supplement Series | date=1 July 2021 | volume=255 | issue=1 | at=15 | arxiv=2105.14851 | bibcode=2021ApJS..255...15W | doi=10.3847/1538-4365/ac0835 | s2cid=235253975 | doi-access=free }}

{{citation|arxiv=2012.08820|title=Non-sinusoidal transit timing variations for the exoplanet HAT-P-12b|year=2021|doi=10.1088/1674-4527/21/4/97|last1=Sariya|first1=Devesh P.|last2=Jiang|first2=Ing-Guey|last3=Su|first3=Li-Hsin|last4=Yeh|first4=Li-Chin|last5=Chang|first5=Tze-En|last6=Moskvin|first6=V. V.|last7=Shlyapnikov|first7=A. A.|last8=Ignatov|first8=V.|last9=Mkrtichian|first9=David|last10=Griv|first10=Evgeny|last11=Mannaday|first11=Vineet Kumar|last12=Thakur|first12=Parijat|last13=Sahu|first13=D. K.|last14=Chand|first14=Swadesh|last15=Bisht|first15=D.|last16=Sun|first16=Zhao|last17=Ji|first17=Jianghui|journal=Research in Astronomy and Astrophysics|volume=21|issue=4|page=097|bibcode=2021RAA....21...97S |s2cid=229188086}}

{{cite web |url=https://www.nameexoworlds.iau.org/2022approved-names |title=2022 Approved Names |website=nameexoworlds.iau.org |publisher=IAU |access-date=7 June 2023}}

}}